2024同步攻关高考英语一轮复习学案：语法部分 第8讲 定语从句
第8讲 定语从句
1. 定语从句：修饰一个名词或代词的从句称为定语从句，一般紧跟在它所修饰的先行词后面。
2. 先行词：被定语从句修饰的那个名词或代词称为先行词。
3. 关系词：引导定语从句的关联词称为关系词。关系词有关系代词和关系副词。关系代词：who, whom, whose, which, that, as等；关系副词：where, when, why等。关系词常有三个作用：引导定语从句；代替先行词；在定语从句中充当一个成分。
例如：Harry Potter is the most interesting novel that I have read. (that I have read是定语从句；novel是先行词；that 是关系代词，代替先行词novel，在从句中作have read的宾语。)
关系词指代人或物以及在定语从句中充当的成分
关系词 指代人或物 定语从句中充当的成分
关系
代词 that 人或物 主语、宾语、
表语或状语
which 物或主句内容 主语、宾语或定语
who 人 主语或宾语
whom 人 宾语
whose 人或物 定语
as 人或物或主句内容 主语或宾语
关系
副词 when 时间 状语
where 地点 状语
why 原因 状语
4. 限制性定语从句和非限制性定语从句
限制性定语从句形式上不用逗号和主句隔开，是先行词不可缺少的部分，去掉它主句意思往往不明确，翻译成先行词的定语，“……的……”。非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开，通常翻译成主句的并列句。关系代词that和关系副词why不能引导非限制性定语从句。
His brother who is now a lawyer always encourages him to go to college.
他那个现在是律师的哥哥总是鼓励他上大学。(他还有其他的哥哥)
His brother, who is now a lawyer, always encourages him to go to college.
他的哥哥，现在是律师，总是鼓励他上大学。(他只有一个哥哥)
一、关系代词的使用
【例句观察】
①She is the woman (whom / that / who)I wanted to see yesterday.
她是我昨天想看的那个女的。
②The package (which / that)you are carrying is about to come unwrapped.
你扛着的包裹马上要拆开。
③Obama won the Nobel Prize for Peace in the year 2009, which we hadn't expected.
Obama在2009年得诺贝尔和平奖是大家都没想到的。
④Your parents are the ones to whom you can turn when you are in trouble.
你父母是你困难时可以求助的人。
【例句分析】
①whom / that / who指人，在限制性定语从句中作wanted to see的宾语，可以省略。
②which / that指物，在限制性定语从句中作are carrying的宾语，可以省略。
③which指前面主句内容，在非限制性定语从句中作宾语，但不能省略。
④whom前有介词to，虽然作宾语，但不能省略。
【结论1】关系代词若在限制性定语从句中作宾语并且前面无介词时，关系代词可省略，其他情况不可省。
【完成例句】
(1)我，你的好朋友，当你陷入困境的时候会帮你的。
I, who am your close friend, will try my best to help you whenever you are in trouble.
(2) 《哈利·波特》是最受青少年欢迎的畅销书之一。
Harry Potter is
one of the best－sellers that are popular with teenagers.
《哈利·波特》是唯一一本让作者成为亿万富翁的畅销书。Harry Potter is the only one of the best－sellers that makes the author a billionaire.
(3)他通过了考试，这使我们很惊讶。
He has passed the exam, which makes us surprised.
众所周知，中国发生了巨大的变化。
Great changes have taken place in China,
as is known to all.
(4)每家有台电视,30年前我们认为是不可能的，现在实现了。
To own a TV set in each family, which we think was impossible 30 years ago, now has become true.
【结论2】定语从句中的主谓一致问题
(1)关系代词在定语从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。
(2) one of ＋ 复数名词＋ 关系代词＋ 复数动词；而the only one of ＋ 复数名词＋ 关系代词＋ 单数动词。
(3)非限制性定语从句中，由关系代词as或which代替整个主句时，从句谓语动词要用第三人称单数。
(4)关系代词和谓语动词之间有插入语时，谓语动词单复数要看关系代词的指代。
【完成例句】
(5)所有能做的都做了。
All that can be done has been done.
(6)这就是我想要买的电影。
This is the very dictionary that I want to buy.
(7)他们在伦敦参观的第一个地方是大本钟。
The first place that they visited in London was the Big Ben.
(8)站在那儿的是谁？
Who is the man that is standing there?
(9) They have set up a company, which deals with the things that are related to environment protection.
他们创立了一家环保公司。
(10)杭州不再是过去的杭州了。
Hangzhou
is no more the city that it used to be.
【结论3】指物时，定语从句中的关系代词只能用that的情况：
①当先行词为everything, anything, nothing, the one, none, all, much, few, any, little等不定代词时，只用that。
②当先行词被the only, the very, all, much, few, any, little, no修饰时，只用that。
③当先行词被序数词、形容词最高级或者先行词被序数词、形容词最高级修饰时，只用that。先行词既有人又有物时，只用that。
④当主句的主语是疑问词who或which时，为避免重复要用that。
⑤有两个定语从句时，其中一个关系代词已用which，另一个宜用that。
⑥当先行词在主句中作表语，而关系代词也在从句中作表语时，只用that。
【完成例句】
(11)那棵四百年的老树很有名。
The tree, which is four hundred years old, is very famous here.
(12)我们自给自足。
We depend on the land
from which we get our food.
(13)这本书是关于我们要去参观的那座有名的建筑吗？
Is this the book that refers to the famous building which we will go to visit?
【结论4】只能用 which的情况：
①引导非限制性定语从句时，只能用which。
②介词后只用which，且不能省略。
③有两个定语从句时，其中一个关系代词已用that，另一个宜用which。
【完成例句】
(14)有人愿意帮助受伤的人吗？
Is there anyone who is ready to help the injured person?
(15)这就是那位帮助在事故中受伤的人的医生吗？
Is this the doctor that helped the people who were injured in the accident?
【结论5】指人时，定语从句中的关系代词只能用who的情况：
①当先行词是anyone, those时，只用who。
②有两个定语从句皆指人时，其中一个关系代词已用that，另一个宜用who。
【完成例句】
(16)那个门破了的教室在二楼。
The classroom whose door / the door of which / of which the door is broken is on the second floor. 【结论6】whose可以指代人或物，在定语从句中作定语， 后跟名词。指物时，whose ＋ 名词＝ of which ＋名词 ＝ 名词＋ of which。
【完成例句】
(17)我们都知道，吸烟有害健康。
① As we all know, smoking is harmful to one's health.
太阳照射地球，这对我们是很重要的。
②The sun heats the earth, which is very important to us.
(18)①她和她妹妹穿一样的衣服。
She wore the same dress as her young sister wore.
②这不是我们想到的那所房子。
This house is not such as I expect.
(19)就像我们指出的那样，这种物质是有毒的。
As was pointed out, this kind of substance is poisonous.
【结论7】关系代词as和which
在非限制性定语从句中，as和which可代替整个主句，相当于and this或and that。二者的区别主要在于：
①as引导的非限制性定语从句既可以在主句前，也可以在主句后，有时还可以在插入句中，常带有“正如……，正像……”的意思。而which引导的非限制性定语从句只能放在主句之后，翻译成“这”。
②as常用于以下固定搭配中：the same＋名词＋as “和……同样的”，such＋名词＋as“像……一样的，像……之类的”，…such as…“这样的人 / 物”。(such为代词，作先行词； as在从句中作宾语)
③在以下结构中，一般也用as:
as (it)appears, as (it)seems, as (it)often happens, as (it)was pointed out / said / reported / announced, as (it)was said earlier, as I remember (it), as is well－known, as is known to all, as anybody can see等。
【完成例句】
(20)这就是我一直在找的书。
This is the book which / that / 不填I am looking for.
(21)他深爱对他慈爱的父母。
He loved his parents deeply, both of whom are very kind to him.
＝He loved his parents deeply, of whom both are very kind to him.
(22)我没有足够的钱去买那条昂贵的裙子。
I don't have enough money with which to buy such an expensive dress.
(23)从1998年到2004年Mike在这所大学学习，在此期间，他学习很努力并当选为学生会主席。
Mike studied at the university from 1998 to 2004, during which time he studied very hard and was made chairman of the Students' Union.
【结论8】“介词＋关系代词”引导的定语从句，关系代词指人时用whom，指物时用which。
①某些带有介词的动词短语，介词可以提至关系代词之前，但是在一些固定搭配的短语动词中，由于动词和介词不可以分割，因此不能将介词置于关系代词之前，如take care of, look for, look after, care for等。
②“介词＋关系代词”前可有some, any, none, both, all, neither, most, each, few等代词或者数词，有时数词或代词也可以放在“介词＋关系代词”之后。
③介词＋which / whom＋to do结构。这种结构可以改为：介词＋which / whom＋定语从句。
④在非限制性定语从句中，which可作定语，指先行词(短语或句子)所表示的信息，形成“介词＋which ＋名词”结构，相当于and in / at / during this / that＋名词。
二、关系副词的使用
【完成例句】
(24)我仍然记得我们第一次上学的那天。
I still remember the day
when /
on which we first came to the school.
(25)十年前我住的房子已经被推倒了。
The house where / in which I lived ten years ago has been pulled down.
(26)我不知道他今天看起来不高兴的原因。
I don't know the reason
why / for which he looks unhappy today.
【结论1】关系副词的分类和作用
①when指时间，在定语从句中作时间状语；when＝表示时间的介词(in / at / on / during…)＋which。
②where指地点，在定语从句中作地点状语，where＝表示地点的介词(in / at / on / under…)＋which。
③why指原因，在定语从句中作原因状语， why＝表示原因的介词(for)＋which。
【翻译句子】
(27)他回答这个问题的方式是令人惊讶的。
The way
in which / that
/ 不填he answered the question was surprising.
(28) The way
which / that he explained to us was quite simple.
【结论2】在以the way为先行词的定语从句中，若the way 在从句中充当状语，则通常由in which或that引导，而且通常可以省略。若the way 在从句中充当宾语，则通常由which或that引导。
【完成例句】
(29)中国是风筝的起源地，并从那里传播到日本、韩国、泰国和印度。
China is the birth place of kites, from where kites spread to Japan, Korea, Thailand and India.
【结论3】有时为了表达更清楚，可以在关系副词where / when前加上介词to, from等。
【疑难】
There is one point that we must insist on.
有一个观点我们必须坚持。(定语从句可还原为：we must insist on the point，所以先行词point在定语从句中作宾语，故用that / which或省略。)
We're just trying to reach a point where both sides will sit down together and talk.
我们正努力做到能让双方坐下来对话。 (定语从句可还原为：at the point both sides will sit down together and talk, 故先行词point在定语从句中作状语，所以关系词用where / at which。)
【疑难剖析】一些特殊的先行词如situation, point, case, activity，scene及period, festival, occasion等要注意具体情况具体分析，作主语、宾语和表语用that / which，作状语用where / when / 介词＋which。
三、关系代 / 副词的选择技巧
【完成例句】
(30)我会记住我们一起度过的日子。
I will remember the days that
/ which
/ 省略 we spent together.
(根据把定语从句还原成we spent the days together，判断出the days作spent的宾语)
(31) 6月7日是我们开始高考的日子。
June 7 is the day when / on which we begin to take the college entrance examination.
(根据把定语从句还原成we begin to take the college entrance examination on the day，判断出on the day作状语。)
(32 )这是他工作过10年的地方。
This is the place where / in which he worked for ten years.
(根据把定语从句还原成he worked in the place for ten years，判断出in the place作状语。)
【结论】
①用还原法：将先行词放入定语从句中，找到它的原有位置，判断它做什么成分以及判断先行词指人还是指物。
②一般说来，作主语、宾语或表语时，用关系代词；作状语时，用关系副词或介词＋which；作定语时，用whose。
四、定语从句和其他句型之间的关系
【例句观察】
He is such a good boy that everyone likes him. (不缺句子成分，that引导结果状语从句)
